?url_ver=Z39.88-2004&rft_id=1415051003&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=ANALISIS+PETROFISIKA+PADA+SEISMIK+UNTUK+IDENTIFIKASI+RESERVOAR+DAN+ESTIMASI+CADANGAN+MIGAS+PADA+LAPANGAN+%E2%80%9CALZ%E2%80%9D+CEKUNGAN+SUMATERA+SELATAN%0D%0A%0D%0A&rft.creator=+AGUNG+ARI+SAPUTRA+%2C+1415051003&rft.subject=GB+Physical+geography&rft.subject=Teknologi+(General)&rft.description=%0D%0ATahapan+ekplorasi+merupakan+tahapan+awal+yang+menentukan+keberhasilan+dalam+industri+migas.+Analisis+petrofisika+dan+inversi+AI+sangat+diperlukan+untuk+melihat+zona+reservoar+dan+perhitungan+cadangan.+Analisis+petrofisika+di+Lapangan+%E2%80%9CALZ%E2%80%9D+dilakukan+terhadap+empat++sumur+eksplorasi%2C+yaitu+Sumur+Alzka-1%2C+Sumur+Alzka-2%2C+Sumur+Alzka-3+dan+sumur+Sumur+Alzka-4.+Berdasarkan+ke-empat+sumur+tersebut%2C+hanya+tiga+sumur+yang+terindikasi+sebagai+zona+reservoar+yaitu+Sumur+Alzka-1%2C+Sumur+Alzka-3+dan+Sumur+Alzka-4+dengan+rata-rata+porositas+pada+zona+reservoar+berkisar+5-25+%25+dengan+nilai+cut-off+4-10+%25.+Untuk+nilai+Sw++pada+zona+reservoar+berkisar+10-35+%25+dengan+nilai+cut-off+30-35%25+sedangkan+untuk+ketebalan+bersih+reservoir+berkisar+dari+30-80+m+dengan+rasio+lumping+N%2FG+rata-rata+0.52.+Pemodelan+peta+isoporositas+dan+saturasi+air+memiliki+keseragaman+pola+dengan+peta+sebaran+AI+zona+prospek.+Adapun+batas+body+sandstone+akhirnya+menggunakan+batas+yang+ditunjukan+oleh+peta+sebaran+porositas+dan+AI.+Batas+body+sandstone+peta+porositas+digunakan+sebagai+cut-off+untuk+memeroleh+peta+netpay+tiap+parameter.+Perhitungan+cadangan+dilakukan+secara+volumetrik+pada+lapisan+target+dengan+prospek+gas.+Hasil+perhitungan+estimasi+cadangan+gas+untuk+daerah+reservoar+sebesar+326+BSCF+dan+cadangan+tersebut+meupakan+cadangan+yang+sangat+ekonomis+untuk+di+produksi.%0D%0A%0D%0A%0D%0A%0D%0AKata+kunci%3A+reservoar+sandstone%2C+estimasi+cadangan%2C+gas%2C+Inversi+AI%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AThe+exploration+phase+is+a+crucial+initial+step+to+ensure+the+success+of+the+oil+and+gas+industry.+Petrophysical+analysis+and+seismic+acoustic+impedance+inversion+are+needed+to+identify+reservoir+zone+and+hydrocarbon+reserve+calculation.+Petrophysical+analysis+was+conducted+in+four+wells%2C+which+are+Well+Alzka-1%2C+Well+Alzka-2%2C+Well+Alzka-3+dan+Well+Alzka-4.+Based+on+the+calculation%2C+only+three+wells+indicated+as+reservoir+zone%2C+which+are+Well+Alzka-1%2C+Well+Alzka-3+and++Well+Alzka-4+with+average+of+porosity+in+reservoir+zone+around+5-25%25+and+cut-off+value+4-10%25.+Water+saturation+value+in+reservoir+zone+is+10-35%25+%2C+cut-off+value+is+30-35%25%2C+reservoir+net+thickness+is+30-80+m+and+lumping+N+%2F+G+ratio+is+0.52.+The+isoporosity+and+water+saturation+map+has+similar+pattern+with+the+accoustic+impedance+distribution++map+in+the+prospect+zone.+The+sandstone+body+boundaries+used+the+boundaries+indicated+by+the+porosity+and+accoustic+impedance+distribution+map+.+The+sandstone+boundary+of+the+porosity+map+was+used+as+a+cut-off+to+obtain+a+netpay+map+for+each+parameters.+The+reserve+calculation+is+carried+out+by+using+volumetric+method+of+gas+prospect+in+the+target+layer.+The+calculation+result+of+gas+reserve+estimation+for+reservoir+area+is+326+BSCF%2C+it+shows+that+the+reserve+is+economical+for+production.%0D%0AKeywords+%3A+Reservoir+sandstone%2C+Reserve+estimation%2C+Gas%2C+Accoustic+impedance+inversion%0D%0A%E2%80%83%0D%0A&rft.publisher=+FAKULTAS+TEKNIK+&rft.date=2018-02-20&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31279%2F1%2FABSTRACT%2520-%2520ABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31279%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F31279%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=+++AGUNG+ARI+SAPUTRA+%2C+1415051003++(2018)+ANALISIS+PETROFISIKA+PADA+SEISMIK+UNTUK+IDENTIFIKASI+RESERVOAR+DAN+ESTIMASI+CADANGAN+MIGAS+PADA+LAPANGAN+%E2%80%9CALZ%E2%80%9D+CEKUNGAN+SUMATERA+SELATAN.+++FAKULTAS+TEKNIK+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F31279%2F